Describes a process for producing terminal or internal alkynes from ketones. Recommends using the experiment to aid in understanding acid-base strength, enolate anion chemistry, reaction at carbon versus oxygen, use of polar aprotic solvents, and elimination and nucleophilic substitution reactions. (ML)

Describes experiments in which students prepare in situ soluble complexes of metal ions with different ligands and observe and estimate the change in formal potential that the ion undergoes upon complexation. Discusses student formation and analysis of soluble complexes of two different metal ions with the same ligand. (CW)

Contains three policy statements involving the use of animals for proper teaching of students, research, and the utilization of pound animals. Discusses the benefits to society of using animals in the biomedical sciences. (CW)

Discusses general construction principles for miniaturized laboratory glassware. Describes a prototype experimental kit that allows the carrying out of all standard laboratory operations and discusses a trial use of the equipment with students 16- to 17-years-old. (CW)

Discusses some contributions chemists can make in the investigation of crime. Describes the optical properties of materials and defines the refractive index. Explains the refractive indices for liquids and for solids, and provides laboratory exercises for determining both. (TW)

Traces the development of instruments used in spectrophotometry. Discusses how spectrophotometric measurements are made. Describes the color comparator, the filter photometer, and the spectrophotometer. Outlines the evolution of optical systems, including light sources, the monochromator, the photodetector, double-beam optics, and split-beam…

Outlines a cooperative effort in Iowa to eliminate dangerous or unwanted chemicals from school science storerooms. Also reviews the Council of State Science Supervisor's safety program and discusses how to prevent cuts and punctures from jagged glass tubing. (JN)

CHEMPAC, a computer-based chemistry course developed for high school students, bridges the gap between textbook and laboratory to provide greater quantitative accuracy to laboratory experiments. This course and experiments (involving pH) illustrating the CHEMPAC approach are provided. (JN)

Defines the self-study group and differentiates it from other laboratory training groups. Investigates the effects of sex and style of the facilitators on group members. Presented at the American Group Psychotherapy Association Convention, Boston, Mass., February, 1976. (HMV)

To accomodate the increased need for pathology in pharmaceutical education, the University of Wyoming School of Pharmacy has modified its instructional program, presented according to Keller's PSI method. Students take a course that integrates basic anatomic pathology with the fundamental concepts of clinical laboratory technique. (LBH)

Described is the construction of a density gradient column and several density related experiments which can be performed with the device. (SL)

The purpose of this study was to examine the effectiveness of computer-animated dissection techniques versus the effectiveness of traditional dissection techniques as related to student achievement. The sample used was 104 general biology students from a small, rural high school in Northeast Tennessee. Random selection was used to separate the…

The findings from the application of audio-tutorial programing in three curriculum areas with three groups of exceptional children are reported. The findings suggest that audio-tutorial programing has qualities capable of meeting some of the instructional needs of exceptional children. (Author)

Describes the laboratory procedures for the measurement of thermal expansion and viscosity of liquids. These experiments require inexpensive equipment and are suitable for secondary school physical science classes. (JR)

A physics program within which students design their own experiments and construct the needed equipment is described. Different projects and equipment designed and built by the students are detailed as examples of the success of this program. (JP)